American Projectiles and Explosives - 8-inch Projectiles

American Projectiles and Explosives

8-inch Projectiles





8-inch A.P. Mk 19 Mods 1-6

Guns used in: 8"/55

Overall length w/ cap & windshield: 36 inches
Overall length w/o cap & windshield: 19.4 inches
Diameter of base: 7.977 inches
Distance base to band: 2.56 inches
Width of band: 3.3 inches
Diameter at bourrelet: 7.977 inches

Filling: Explosive D
Weight of filling: 3.64 pounds
Weight of loaded projectile: 260 pounds
Charge/Weight ratio: 1.4%

Cartridge case: N/A
Primer: Mk 15 Mod 1
Tracer: Mk 5

Fuzes:
-Base: Mk 23 Mod 0
-Mk 21 Mods 0 and 1


Base Fuze Mk 21 is preferred.  Mk 23 to be used only when Mk 21 is not available.







8-inch A.P. Mk 21 Mods 1-5

Guns used in: 8"/55

Overall length w/ cap & windshield: 36 inches
Overall length w/o cap & windshield: 24.5 inches
Diameter of base: 7.977 inches
Distance base to band: 2.56 inches
Width of band: 3.3 inches
Diameter at bourrelet: 7.977 inches

Filling: Explosive D
Weight of filling: 5.03 pounds
Weight of loaded projectile: 335 pounds
Charge/Weight ratio: 1.5%

Cartridge case: N/A
Primer: Mk 15 Mod 1
Tracer: Mk 5

Fuzes:
-Base: Mk 23 Mod 0
-Mk 21 Mods 0 and 1


Base Fuze Mk 21 is preferred.  Mk 23 to be used only when Mk 21 is not available.








8-inch Special Common Mk 17 Mods 1-4

Guns used in: 8"/55

Overall length: 36 inches
Diameter of base: 7.977 inches
Distance base to band: 2.56 inches
Width of band: 3.3 inches
Diameter at bourrelet: 7.977 inches

Filling: Explosive D
Weight of filling: 10.38 pounds
Weight of loaded projectile: 260 pounds
Charge/Weight ratio: 3.99%

Cartridge case: N/A
Primer: Mk 15 Mod 1
Tracer: Mk 5

Fuzes:
-Base: Mk 23 Mod 0
-Mk 21 Mods 0 and 1


Base Fuze Mk 21 is preferable for this projectile.  Several have also been fuzed with the Base Fuze Mk 28 on account of a lack of sufficient H.C. projectiles.






8-inch Common Mk 14 Mod 1

Guns used in: 8"/55

Overall length w/ cap & windshield: 36 inches
Overall length w/o cap & windshield: 26.19 inches
Diameter of base: 7.977 inches
Distance base to band: 2.56 inches
Width of band: 3.3 inches
Diameter at bourrelet: 7.977 inches

Filling: Explosive D
Weight of filling: 10.91 pounds
Weight of loaded projectile: 260 pounds
Charge/Weight ratio: 4.4%

Cartridge case: N/A
Primer: Mk 15 Mod 1
Tracer: Mk 5

Fuzes:
-Base: Mk 23 Mod 0
-Mk 21 Mods 0 and 1


The Base Fuze Mk 23 is used only when Mk 21 is not available.







8-inch Common Mk 15 Mod 1

No picture available

Guns used in: 8"/55

Overall length w/ cap & windshield: 36 inches
Overall length w/o cap & windshield: 26.19 inches
Diameter of base: 7.977 inches
Distance base to band: 2.56 inches
Width of band: 3.3 inches
Diameter at bourrelet: 7.977 inches

Filling: Explosive D
Weight of filling: 11.46 pounds
Weight of loaded projectile: 260 pounds
Charge/Weight ratio: 4.4%

Cartridge case: N/A
Primer: Mk 15 Mod 1
Tracer: Mk 5

Fuzes:
-Base: Mk 23 Mod 0
-Mk 21 Mods 0 and 1


The Base Fuze Mk 23 is used only when Mk 21 is not available.








8-inch H.C. Mk 24 Mods 1-5

Guns used in: 8"/55

Overall length w/ cap & windshield: 34.56 inches
Overall length w/o cap & windshield: 31.08 inches
Diameter of base: 7.977 inches
Distance base to band: 2.56 inches
Width of band: 3.3 inches
Diameter at bourrelet: 7.977 inches

Filling: Explosive D
Weight of filling: 21.34 pounds
Weight of loaded projectile: 260 pounds
Charge/Weight ratio: 8.21%

Cartridge case: N/A
Primer: Mk 15 Mod 1
Tracer: Mk 5 Mod 1

Fuzes:
-Base: Mk 28 and all Mods
-Mk 39 Mods 0 and 1
-Mk 48 Mods 0 and 1

-Nose: Mk 18 Mods 2, 3, and 4 (M.T.F.)
-Mk 50 Mods 0-3 (M.T.F.)
-Mk 29 Mods 1, 2, and 3 (P.D.F.)
-Mk 63 Mod 0 (M.T.F.)


Auxiliary Detonating Fuze:
-Mk 17 and all Mods
-Mk 46 Mod 0
-Mk 35 Mod 0
-Mk 54 Mods 0 and 1
-Mk 55 Mod 0


Base Fuze Mk 48 (and Mods) is the current and preferred assembly for this projectile; however, the Base Fuzes Mk 39 or Mk 28 may be used.

The Auxiliary Detonating Fuze Mk 55 is the preferred assembly in this projectile.







8-inch H.C. Mk 25 Mod 1

Guns used in: 8"/55

Overall length w/ cap & windshield: 34.605 inches
Overall length w/o cap & windshield: 31.13 inches
Diameter of base: 7.977 inches
Distance base to band: 2 inches
Width of band: 3.3 inches
Diameter at bourrelet: 7.977 inches

Filling: Explosive D
Weight of filling: 21.37 pounds
Weight of loaded projectile: 260 pounds
Charge/Weight ratio: 8%

Cartridge case: Mk 1
Primer (bag gun): Mk 15 Mod 1
Primer: Mk 35
Tracer: Mk 5

Fuzes:
-Base: Mk 23 Mod 0
-Mk 21 Mods 0 and 1


The Base Fuze Mk 21 is preferred.  This projectile is designed so that it may be manufactured by forging from the base end.

Next Time: 12-inch and 14-inch Projectiles